Reference and definite descriptions / Keith S. Donnellan -- Identity and necessity / Saul Kripke -- Is semantics possible? / Hilary Putnam -- Meaning and reference / Hilary Putnam -- Underlying trait terms / William K. Goosens -- Natural kinds / W.V. Quine -- Essence and accident / Irving M. Copi -- The casual theory of names / Gareth Evans -- Speaking of nothing / Keith S. Donnellan -- Transworld identity of worldbound individuals? / Alvin Plantinga